Vertical to horizontal adapter for a belt grinding machine

Abstract

An adapter for a Bader grinder which permits rapid and easy change from vertical to horizontal grinding wherein the adapter has a quick mounting base portion with two pivoted arms each having a wheel rotatably mounted on the distal end and means for adjusting the angular position of the wheels with respect to the base. The contact wheel is generally oriented horizontally and its support arm is pivotally mounted on the distal end of the base to provide a horizontally moving belt to the workpiece.

What is claimed is: 
     
       1. A vertical to horizontal adapter for a belt grinding machine having a vertically oriented drive wheel rotated about a horizontal axis, said adapter comprising: a base portion which is attached to said grinding machine;   a first arm pivotally mounted on said base;   a generally vertically oriented wheel rotated about a generally horizontal axis pivotally mounted on the distal end of said first arm so that a grinding belt is generally horizontally oriented as it runs over said vertically oriented wheel;   means for adjusting the angular position of said first arm with respect to said base;   a second arm pivotally mounted on the distal end of said base;   a generally horizontally oriented wheel rotated about a generally vertical axis pivotally mounted on the distal end of said second arm so that a grinding belt is generally oriented to grind horizontally as it runs over said generally horizontally oriented wheel; and   means for adjusting the angular position of said second arm with respect to said base whereby a grinding belt driven by a vertically oriented drive wheel generally presents a grinding belt moving horizontally at a workpiece.   
     
     
       2. An adapter as set forth in claim 1, wherein the first arm is pivotally mounted adjacent the central portion of the base. 
     
     
       3. An adapter as set forth in claim 2, wherein the first arm is pivotally mounted adjacent its central portion. 
     
     
       4. An adapter as set forth in claim 3, wherein the angular adjustment means for the first arm comprises a first pivot pin pivotally mounted on the end of the second arm opposite the vertically oriented wheel and has a threaded hole disposed therein, a second pivot pin mounted on said base and having a plain hole disposed therein, a threaded rod with a handle on one end and being threaded through said first pivot pin and passing through said second pivot pin with a nut affixed to said rod adjacent each side of said second pin. 
     
     
       5. An adapter as set forth in claim 4, wherein the angular adjustment means for the second arm comprises an angularly disposed threaded hole in the base and a threaded thumb screw which engages the second arm adjacent the end of the arm opposite the generally horizontally oriented wheel. 
     
     
       6. An adapter as set forth in claim 5 and further comprising means for fixing said base to said machine. 
     
     
       7. An adapter as set forth in claim 1 and further comprising means for fixing said base to said machine. 
     
     
       8. An adapter as set forth in claim 7, wherein the means for fixing said base to said machine comprises a hole in said machine and an end of said base which fits into said hole. 
     
     
       9. An adapter as set forth in claim 8, wherein the end of said base which fits into the hole in the machine has a centerline which forms an acute angle with a longitudinal centerline of the base. 
     
     
       10. An adapter as set forth in claim 8, wherein the base has an ear extending from one side thereof which is attached to the machine.